Bobbin for filling-replenishing looms.



F. DION.

BOBBIN FOR FILLING REPLENISHING LOOMS. APPLIGATION FILED JULY 14, 190s.

936,524. Patented 0@t.12,1909.

FRANQOIS DION, OF MANCHESTER, NEW .HAMPSHIRE nomme FoarILLINe-RPLENISHING Looms.

I Specification of Letters Patent.

Patented Oct. 12, 1909.

Appnenuon ined July 1'4, 190s. serial no. 443,420.

Manchester, county of Hillsboro, and State of New Hampshire, have invented an Improvement in Bobbins for Filling-Replenishing Looms, of which the following descrlption, in connection with the accompanying drawing7 is a specification, like numerals on the drawmg representing like parts.

This invention relates to bobbins for filling-replenishing looms and especially for that classof looms where the filling is replenishedy by dischargin the exhausted bobin from the shuttle an replacing it with a fresh bobbin.

In looms of this class `it is common to detect the practical exhaustion of the filling on the bobbin by means of a feeler and in order that the bobbin may not be changed before the filling is nearly exhausted, it is customary to wind 4a bunch on the bobbin near vthe base thereof, which bunch coperates with the feeler to set in motion the fillingreplenishing mechanism when the bobbin 1s substantially exhausted. It has. also been proposed to substitute for the bunch a collar or sleeve which can 'slide longitudinally of the bobbin and which is normally held in osition to act on the feeler by the fillin so ongas there is a sufficient quantity of filefin on the bobbin, but which becomes displace by the picking of the shuttle when the filling is substantially exhaisted.- When the collar does thus become displaced. theV feeler does not strike thecollar when the lay beats up and the lf1lling-replenishing mechanism 1s set in operation.

The object of my invention is to improve fbobbins of this class which have the collar thereon by providing a. construction in which the collar will not be liable to be thrown back into its original position after the `filling is exhausted as sometimes happens with the collars now used. I accomplish this by providing the *bobbin with a friction device which'engages the collar when it has' been thrown yinto its inoperative position and which serves to hold it in such position.

Referring to the drawings wherein one embodiment of m invention vis shown, Figure l shows a bob in having my improvement applied thereto; Fig. 2 is a longitudinal section through the bobbin on the line Iz-, Fig. 1.

bobbin is shown as having the usual l head or base 3 and spindle 4 about which the filling is wound, and 'the head or base is shown as having the ribs 5 thereon which are adapted to fit the ribbed aws in the shuttle.

In accordance with my invention I place around the lower end of the bobbin a collar 6 which preferably is made to fit the bobbin sufficiently loosely so that it can slide longitudinally thereof. The bobbin is provided in one side with a. groove 'T in which is received a friction spring 8, said spring nornmlly tending to bow upwardly slightly in its center. The collar is providedwith an inwardly-extending projection 9 which fits in* the'groove 7. This collar, when iu the posif tion shown in Figs. l and 2, takes the place of the bunch commonly wound on bobbins and so long as the collar occupies this position it will be engaged by the feeler as the lay beats up and .thefilling-replenishing mechanism will not be operated.l wWhen, however, the filling is exhausted to such an extent that there is insufficient filling to hold the collar in the position shown in the drawings, the throwing of the shuttle across the loom in a direction from right to left. on the drawing will cause the'collar (3 to be thrown toward the tip of the bobbin and when the lay next Y beats up the feeler will not be operated by the collar and the filling-replenishing mechanism will be set in operation.

While the spring' 8 is sufficiently resilient to permit the collar 6 to be thrown. toward the tip of the bobbin as far as the slot 7 will allow, yet said spring by acting on the pin or projection 9 acts as a friction device to prevent the return of the collar into the position shown in the drawings. It will be readily seen that'if the collar should be returned to the position shown in Fig. 1 before the lay beats up, the flling-replenishing mechanism would not be operated as it should have been. .My invention provides for retaining the collar 6 inits abnormal position when the filling is lexhausted and prevents it from returning to its normal position bythe movement of the shuttle across the lay. Moreover the application of my invention to a bobbin does not materially weaken the bobbin because it is only necessary to form a comparatively shallow groove therein and the bobbin does not have to be put clear through.

Having fully described my invention, what 1. "Ifhe combinationwith a bobbin having a groove in' one side, of a collar slidably mounted on the bobbin and having a. rojeotion enteringsaid groove, and a' 'ction spring within the groove engaging the projection. 2. The combination with a bobbin having a. groove in one side, of a collar or sleeve shdably mounted on the bobbin and provided with a projection entering said groove, and a jfriction device within the groove acting on 10 the end of the projection.

In testimony whereof, I have signed my name to this specification, in the presence' of two subscribing witnesses.

FRANQOIS DION Witnesses: y

ALFRED DION, 'ERNEST RoRY. 

